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SUPERNOVA/EXPLODING STAR

Fractal Space posted on Dec 08, 2012
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Description


Supernova A supernova (abbreviated SN, plural SNe after supernovae) is a stellar explosion that is more energetic than a nova. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months. During this short interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span.[1] The explosion expels much or all of a star's material[2] at a velocity of up to 30,000 km/s (10% of the speed of light), driving a shock wave[3] into the surrounding interstellar medium. This shock wave sweeps up an expanding shell of gas and dust called a supernova remnant. The most visible exploding star in a generation will be visible in skies above Britain within a fortnight, Oxford University astronomers have announced.

Comments (1)


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peedy

8:34AM | Sat, 08 December 2012

Fantastic colors. Great info. Corrie


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